Installation Guide
21 | Diamond Kote Building Products Application Guide           6.18
HISTORIC COLLECTION | SCALLOP 
APPLICATION 
 Apply siding over properly prepared walls. 
(see general guidelines page 2)
•    It  is  REQUIRED to use Nailable structural 
sheathing. Scallops can be installed 
blind fastened.
•   Scallops can be installed by starting 
with a starter strip or by overlapping a 
previous course of lap siding 
(4" minimum). 
(see Figure 6)
•   For scallops, start installation left to 
right. It is recommended to use a 3/8" 
x 4" piece of same color lap siding as a 
starter shim, as this will partially show 
because of the rounded bottom edge. 
(see Figure 6a)
•   Trim left edge so that siding section ts 
against corner board, with a 3/16" gap. 
(see Figure 6b)
•   Butt joint seams are not required to land 
on studs.
•   Starting from left, level and install the 
rst course of Scallops so bottom edge 
is  ush  with  the  shim.  Do  NOT  place 
fasteners into bottoms of grooves or 
shiplaps.
•   Fasten 3/4" down from the top of panel, 
into sheathing and/or framing with one 
of the below options.
•   For screws, fasten 12" on center use a 
minimum #8 corrosion resistant tapered 
head wood screw. (see Figure 6c)
•   For nails, fasten 8" no center use a 
minimum of 6d (0.09" shank diameter) 
corrosion resistant ring shank nail.  
(see Figure 6d) 
•   Continue row, working left to right. 
Overlap shiplap butt ends without any 
gap. 
(see Figure 6e)
•   Start subsequent courses in the same 
manner by overlapping courses a 
minimum of 4". 
(see Figure 6f) 
•   Best appearance is obtained by installing 
second course starter piece 21" shorter 
than the rst course. 
(see Figure 6) 
•   Start the 3rd course starter piece 27" 
shorter than the 2nd course. (Figure 6) 
•   Repeat this sequence every 3 courses. 
Shim siding at studs, as needed, to avoid 
drawing siding against uneven walls. 
Bottom Course Detail
Figure 6a
Outside Corner
Figure 6b
GAP 3/16" 
AND SEAL
Minimum 
Overlap
Figure 6f
4"
Nail Placement 8" o.c. Detail
Figure 6d
Scallops Application Figure 6
Siding -or-
4" Starter Strip
Trim Board
21" Oset
Mark Stud Locations
16" or 24" o.c. Framing
HOUSE WRAP
7 ¾" Maximum Exposure 
27" Oset
21" Oset
Nailable Structural 
Sheathing
Shiplap butt ends
Figure 6e
Screw Placement 12" o.c. Detail
Figure 6c
3/4"
1"1"
3/4"
1"1"










